[bug#60735] [PATCH v2 3/3] services: Add block-facebook-hosts-service-type.

[Bruno Victal]

On 2023-01-23 22:40, Ludovic Courtès wrote:
> Bruno Victal <mirai@makinata.eu> skribis:
> 
>> Deprecates %facebook-host-aliases in favour of using
>> hosts-service-type service extensions.
>>
>> * gnu/services/networking.scm
>> (block-facebook-hosts-service-type): New variable.
>> (%facebook-host-aliases): Deprecate variable.
>> * doc/guix.texi: Document it.
> 
> [...]
> 
>> -fe80::1%lo0 www.connect.facebook.net
>> -fe80::1%lo0 apps.facebook.com\n")
>> -
>> +  (let ((domains '("facebook.com" "www.facebook.com"
>> +                   "login.facebook.com" "www.login.facebook.com"
>> +                   "fbcdn.net" "www.fbcdn.net" "fbcdn.com" "www.fbcdn.com"
>> +                   "static.ak.fbcdn.net" "static.ak.connect.facebook.com"
>> +                   "connect.facebook.net" "www.connect.facebook.net"
>> +                   "apps.facebook.com")))
>> +    (append-map (lambda (name)
>> +                  (map (lambda (addr)
>> +                         (host addr name))
>> +                       (list "127.0.0.1" "::1"))) domains)))
> 
> The IPv6 address is different, but now I’m not sure whether fe80::1%lo0
> made sense?

It's a valid address though it's not really equivalent to [::1].